Category: Physics

What is the speed of light in a medium of refractive index n? The refractive index can be seen as the factor by which the speed and the wavelength of the radiation are reduced with respect to their vacuum values: the speed of light in a medium is v = c/n, and similarly the wavelength […]

What are the three steps of seafloor spreading? Terms in this set (7) Magma comes out of the rift valley. Magma cools to rock and hardens. Rock is pushed away as new rock is formed at MOR. Oceanic crust and continental crust meet at the trench. Oceanic crust bends down under the continental crust. Gravity […]

Which rule of Fleming can be used to determine the direction of induced 1 current in the secondary coil if current in the primary coil is changed? Fleming’s Right hand rule – If the forefinger, second (central) finger and thumb of the right hand are stretched at right angles to each other, with the forefinger […]

How can I check myself for dehydration? Tests for dehydration Gently pinch the skin on your arm or stomach with two fingers so that it makes a “tent” shape. Let the skin go. Check to see if the skin springs back to its normal position in one to three seconds. If the skin is slow […]

What is the quotient of 20 and 5? 4 What is the quotient of 90 and 5? Subtract 40 from 40 . The result of division of 905 is 18 . How do you show 90 divided by 5? Using a calculator, if you typed in 90 divided by 5, you’d get 18. You could […]

How does the axle work? An axle is a rod or shaft that rotates the wheels and supports the weight of your vehicle. Axles are essential components of any vehicle and come in three main types: front, rear, and stub. Let’s break down the types of axle and look at how to choose the right […]

How does Cassini communicate with Earth? The Radio Science Subsystem sent radio signals from Cassini to Earth using the spacecraft’s large radio dish called the high-gain antenna. En route, the radio signal interacted with Saturn’s moons, rings or Saturn’s atmosphere. The spacecraft’s high-gain antenna had to be pointed toward Earth in order to send its […]

What are daily necessities? A traditional list of immediate “basic needs” is food (including water), shelter and clothing. Many modern lists emphasize the minimum level of consumption of “basic needs” of not just food, water, clothing and shelter, but also sanitation, education, and healthcare. Different agencies use different lists. What are some modern day things? […]

How many minutes does it take to drive 16 miles? There are 60 seconds in a minute so 0.4 of 60 is 24. In plain English, It would take you 38 minutes and 24 seconds at 25 miles an hour to drive 16 miles. How many minutes does it take to drive 17 miles? the […]

What is magnet and types? Permanent magnets are magnets that retain their magnetism once magnetized. Temporary magnets are materials magnets that perform like permanent magnets when in the presence of a magnetic field, but lose magnetism when not in a magnetic field. Below we breakdown the various types of magnet available. What are the main […]